export const singer = state => state.singer               // 箭头函数简写。 一个函数 return state.singer

export const playing = state => state.playing

export const fullScreen = state => state.fullScreen

export const playList = state => state.playList

export const sequenceList = state => state.sequenceList

export const mode = state => state.mode

export const currentIndex = state => state.currentIndex

export const currentSong = (state) => { return state.playList[state.currentIndex] }

export const disc = state => state.disc

export const topList = state => state.topList

export const searchHistory = state => state.searchHistory

export const playHistory = state => state.playHistory

export const favoriteList = state => state.favoriteList
